Several colleges have that component. I mentioned Collège Boréal in Toronto. It is not even a choice for that college to have a specific program for immigrants, since its clientele consists of immigrants. However, the decision is up to each college.
I would also say that the clientele of nearly half of francophone colleges outside Quebec largely consists of immigrants. I am thinking of Saskatchewan, for example. Collège Mathieu is in Gravelbourg, Saskatchewan, a classic location in Saskatchewan's francophone community. It now has a campus for its immigrant clientele in Regina because not all Africans, for example, are settling in francophone communities. Some choose anglophone communities.